AFFECTED VERSIONS

Not affected versions: curl and libcurl 7.14.1 and earlier, 7.15.3 and later

libcurl 7.15.1 and 7.15.2 contain code that prevents this code from being
executed on architectures where a struct is not of the same assumed packed size
it has on x86, thus they are not vulnerable. For exact details on this, please
review the code and patch.

Also note that (lib)curl is used by many applications, and not always
advertised as such.